1166055500 has 48 divisors (see below), whose sum is σ = 2696488704. Its totient is φ = 438982400.

The previous prime is 1166055437. The next prime is 1166055523. The reversal of 1166055500 is 55506611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60092 + ... + 77091.

It is an arithmetic number, because the mean of its divisors is an integer number (56176848).

Almost surely, 2^1166055500 is an apocalyptic number.

1166055500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166055500 is an abundant number, since it is smaller than the sum of its proper divisors (1530433204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166055500 is a wasteful number, since it uses less digits than its factorization.

1166055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137219 (or 137207 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1166055500 is about 34147.5548172926. The cubic root of 1166055500 is about 1052.5427413843.

The spelling of 1166055500 in words is "one billion, one hundred sixty-six million, fifty-five thousand, five hundred".